|: I use two nuts to avoid the spinning bolt problem. First, a non-locking nut. It will normally pose no problem to screw on a non-locking nut (in the worst case, I use a side cutter to cautiously grip the bolt in its threads). Afterwars, the bolt is tight enough so I can screw on the lock nut. Of course, the bolt needs to be long enough to accept two nuts.
Mine weren't long enough for that. But the solution with cutting a stripe with my dremel did the job easily!
Now I've finished the left skate. :D
Slider and everything. It rocks, although the only thing that really "rocks" here is my trucks rocking me. They can't rock me to sleep though. My sense of humor sucks.